00:00:12.090 welcome to the boiling point really 00:00:14.28000:00:14.290 excited today is we always talked a lot 00:00:16.32000:00:16.330 about steam but today we're going to 00:00:17.73000:00:17.740 talk about hot water got Daniel we're 00:00:20.04000:00:20.050 with me and we're going to talk about 00:00:21.63000:00:21.640 heat exchangers now we have a lot of 00:00:23.85000:00:23.860 boilers that are steam boilers but 00:00:26.82000:00:26.830 sometimes we get the request that you 00:00:28.62000:00:28.630 need hot water so Daniel why don't you 00:00:30.15000:00:30.160 take us through how do we take steam and 00:00:32.76000:00:32.770 make hot water with this okay we have 00:00:35.81900:00:35.829 steam coming in here you have your water 00:00:38.94000:00:38.950 in and your water out okay so as your 00:00:43.08000:00:43.090 water is moving through the tubes inside 00:00:45.99000:00:46.000 of this heat exchanger which is a bundle 00:00:47.58000:00:47.590 it's a bundle and your steam is on the 00:00:49.43900:00:49.449 outside that's where you get your heat 00:00:51.38900:00:51.399 transfer okay so as it's coming through 00:00:53.72900:00:53.739 there as your water is coming through 00:00:55.38000:00:55.390 your temperature controller is sensing 00:00:58.73900:00:58.749 the temperature okay and then we will 00:01:01.73900:01:01.749 regulate the steam flow right here okay 00:01:03.75000:01:03.760 so as our temperature is our desire 00:01:07.08000:01:07.090 temperature is met then our our valve 00:01:09.93000:01:09.940 will then shut down and stop the flow of 00:01:12.57000:01:12.580 steam as soon as we get to our desired 00:01:14.96900:01:14.979 temperature okay so we pull the boiler 00:01:16.53000:01:16.540 up basically you tap into the inlet 00:01:19.88900:01:19.899 right right that's right and then go 00:01:23.42900:01:23.439 ahead and put the steam in which we have 00:01:24.96000:01:24.970 150 psi R rated boilers we've got 250 00:01:27.66000:01:27.670 psi we've got larger heat exchangers of 00:01:29.73000:01:29.740 course for even bigger jobs but in this 00:01:32.76000:01:32.770 particular instance 150 psi is what 00:01:35.45900:01:35.469 you'd be using a boiler like that yeah 00:01:37.56000:01:37.570 this is 150 pound rated okay so 00:01:40.05000:01:40.060 typically you may be putting 125 psi 00:01:42.74900:01:42.759 okay in this unit here okay as far as 00:01:46.10900:01:46.119 temperature goes this can go up to 375 00:01:48.60000:01:48.610 degrees it's set up to be at 125 degrees 00:01:52.13900:01:52.149 it's kind of typical for what customers 00:01:54.02900:01:54.039 are asking for okay but if we need to 00:01:56.73000:01:56.740 change that we can put a different 00:01:57.87000:01:57.880 controller on and we can adjust the 00:02:00.27000:02:00.280 temperature 125 degrees 60 degrees all 00:02:03.30000:02:03.310 the way up to you know 375 degrees 00:02:05.52000:02:05.530 okay so desired now how do you balance 00:02:07.28900:02:07.299 the actual flow of the water I mean 00:02:09.99000:02:10.000 sometimes you might be just rolling 00:02:11.55000:02:11.560 through here how do you balance the flow 00:02:13.05000:02:13.060 on sure typically you'll have a 00:02:14.46000:02:14.470 butterfly valve on your Inlet and outlet 00:02:16.50000:02:16.510 okay you can do it multiple ways you can 00:02:19.14000:02:19.150 get very sophisticated with back 00:02:21.21000:02:21.220 pressure regulators control valves 00:02:23.31000:02:23.320 whatever else but 00:02:24.27000:02:24.280 typically you just put a butterfly valve 00:02:26.31000:02:26.320 on here okay and then you throttle the 00:02:28.38000:02:28.390 butterfly valve based on what what your 00:02:30.63000:02:30.640 temperature is and making sure you're 00:02:32.49000:02:32.500 getting your delta T the the desire 00:02:35.85000:02:35.860 delta T right here okay condensate I'm 00:02:38.61000:02:38.620 trying to do with that right here you 00:02:40.47000:02:40.480 have your condensate return comes out of 00:02:42.48000:02:42.490 the unit it's trapped and then you that 00:02:44.40000:02:44.410 will just get pipes directly back to 00:02:46.56000:02:46.570 your condensate return system okay now 00:02:48.51000:02:48.520 are you just flowing cold water in this 00:02:50.91000:02:50.920 just throwing straight cold water in 00:02:53.34000:02:53.350 typically I mean it's gonna go out to 00:02:55.65000:02:55.660 your system he's gonna go out to the 00:02:57.51000:02:57.520 system it's gonna use however much 00:03:00.32000:03:00.330 temperature and then it's gonna be on 00:03:02.52000:03:02.530 loop so it's coming back so it will be 00:03:04.80000:03:04.810 tempered water okay it's not like you're 00:03:06.44900:03:06.459 putting just city water okay into these 00:03:08.25000:03:08.260 typically okay can you yes okay now if 00:03:11.52000:03:11.530 it does cool down what do we have this 00:03:13.29000:03:13.300 little dude here for oh that's a vacuum 00:03:15.36000:03:15.370 breaker okay so what that's there for is 00:03:18.30000:03:18.310 as that unit cools down and it has to go 00:03:20.82000:03:20.830 to pull a vacuum on it to prevent from 00:03:23.25000:03:23.260 collapsing the shell side of this the 00:03:25.86000:03:25.870 vacuum breaker will allow air to come in 00:03:27.84000:03:27.850 to the unit okay good all right well we 00:03:30.63000:03:30.640 appreciate it 00:03:31.50000:03:31.510 there you have it steam the hot water 00:03:34.47000:03:34.480 using a heat exchanger really appreciate 00:03:37.19900:03:37.209 you Daniel hanging out and we'll see you 00:03:38.75900:03:38.769 next time on the boiling point 00:03:40.19900:03:40.209 appreciate Daniel giving us a little bit 00:03:42.42000:03:42.430 explanation about steam to hot water 00:03:44.46000:03:44.470 with the heat exchanger you know winter 00:03:46.44000:03:46.450 is fast approaching and I hope that you 00:03:48.33000:03:48.340 guys are checking out all of our boiling 00:03:49.77000:03:49.780 points to make sure that your boilers 00:03:51.53900:03:51.549 are prepared for the winter season 00:03:52.94900:03:52.959 that's coming up and if you need us you 00:03:55.08000:03:55.090 certainly could give us a shout we 00:03:56.94000:03:56.950 appreciate you watching make sure you 00:03:58.28900:03:58.299 like us on facebook follow us on twitter 00:04:00.15000:04:00.160 and subscribe to the youtube channel and 00:04:03.00000:04:03.010 we'll see you next time on the boiling 00:04:04.74000:04:04.750 point 00:04:22.79000:04:22.800 you
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